import java.util.Arrays;
//import static java.lang.Math.*;
public class Test2 {
    public static void main(String[] args) {
        double  x= 30;
        double y =20;
        double ret =Math.sqrt(5);
        System.out.println(ret);
        int []Array = {1,2,3,4,5};
        System.out.println(Arrays.toString(Array));
    }
}
